ubuntu 11.04 boot android 4.0 emulator has been in black

Use the command
wbhuang @ ubuntu: ~ / software / android-sdk-linux / tools $. / emulator-avd android-14
start the emulator, the emulator has not reflected on a black screen, what would be the reason?

PS: AVD
I created the following manner:
1, first check the target,
wbhuang @ ubuntu: ~ / software / android-sdk-linux / tools $. / android list
Available Android targets:
----------
id: 1 or "android-14"
Name: Android 4.0
Type: Platform
API level: 14
Revision: 3
Skins: WXGA720, HVGA, WVGA854, QVGA, WXGA800, WQVGA432, WSVGA, WQVGA400, WVGA800 (default)
ABIs: armeabi-v7a
----------
....

2, creating AVD
wbhuang @ ubuntu: ~ / software / android-sdk-linux / tools $. / android create avd - force-n android-14 - target 1

3, starting AVD
wbhuang @ ubuntu: ~ / software / android-sdk-linux / tools $. / emulator-avd android-14
then the following message appears
emulator: emulator window was out of view and was recentered

4, then appeared the simulator interface, but the system has not up on a black screen, even the android interface, these characters are starting to see.


went wrong yet? Seeking heroes look, thank!

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I also happen, the landlord should find the reasons for it, said that under the right reasons, but also to facilitate future friends have the same problem.
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Skins election HVGA
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4.0 questions you another version like
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solved yet? Seeking to share!